linux-kernel - Re: [RFC][PATCH 1/3] PM: Introduce new top level suspend and hibernation callbacks

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Date:	Wed, 19 Mar 2008 00:54:57 +0100
From:	Pavel Machek <pavel@....cz>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>,
	pm list <linux-pm@...ts.linux-foundation.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Greg KH <greg@...ah.com>, Len Brown <lenb@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alexey Starikovskiy <astarikovskiy@...e.de>,
	David Brownell <david-b@...bell.net>
Subject: Re: [RFC][PATCH 1/3] PM: Introduce new top level suspend and
	hibernation callbacks

Hi!

> > So... we do prepare() but it detects new child, so it returns -EAGAIN.
> >   so we call complete() based on description above
> > ...and then we call prepare() to suspend again?
> 
> You misunderstood (maybe the comment needs to be clarified as above).  

Yes, please :-).

> If prepare() returns any error (including -EAGAIN) then complete() does
> not get called.  If prepare() returns successfully but the PM core
> detects that a new child was added while prepare() was running, then we
> call complete(), suspend the child, and call prepare() again.

Ok.

> > > + * @suspend: Executed before putting the system into a sleep state in which the
> > > + *	contents of main memory are preserved.  Quiesce the device, put it into
> > 
> > content....is?
> 
> It's okay to use "contents" -- analogous to the table of contents in a
> book.  It's one of those weird corner cases where either alternative is
> acceptable.

Ok -- I guess I should get that english course ;-).
									Pavel
-- 
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